Incorporates some hardening from CHEF-KOCH/TBCK (abandoned?) project :

+ Disables MathML by default
+ Lowers the HTTP redirects limit
+ Disables any add-on installed outside profile directory
+ Disables accessibility services access
+ Disables system timezone detection
+ Disables UI instrumentation
+ Disables network connectivity checks
+ Disables IPv6 network detection changes
This commit is contained in:
Samuel FORESTIER 2020-11-03 18:56:53 +01:00
parent 37066f8c06
commit 52d0864e41

77
user.js
View File

@ -188,27 +188,34 @@ user_pref("toolkit.telemetry.updatePing.enabled", false); // [FF56+]
user_pref("toolkit.telemetry.bhrPing.enabled", false); // [FF57+] Background Hang Reporter
user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [FF57+]
/* 0340: disable Health Reports
* [SETTING] Privacy & Security>Thunderbird Data Collection & Use>Allow Firefox to send technical... data ***/
* [SETTING] Privacy & Security>Thunderbird Data Collection & Use>Allow Thunderbird to send technical... data ***/
user_pref("datareporting.healthreport.uploadEnabled", false);
/* 0341: disable new data submission, master kill switch [FF41+]
* If disabled, no policy is shown or upload takes place, ever
* [1] https://bugzilla.mozilla.org/1195552 ***/
user_pref("datareporting.policy.dataSubmissionEnabled", false);
/* 0342: disable Studies (see 0503)
* [SETTING] Privacy & Security>Thunderbird Data Collection & Use>Allow Firefox to install and run studies ***/
* [NOTE] This option is missing from Thunderbird's preferences panel (hidden?) ***/
user_pref("app.shield.optoutstudies.enabled", false);
/* 0350: disable Crash Reports ***/
user_pref("breakpad.reportURL", "");
user_pref("browser.tabs.crashReporting.sendReport", false); // [FF44+]
user_pref("browser.crashReports.unsubmittedCheck.enabled", false); // [FF51+]
/* 0351: disable backlogged Crash Reports
* [SETTING] Privacy & Security>Thunderbird Data Collection & Use>Allow Firefox to send backlogged crash reports ***/
* [SETTING] Privacy & Security>Thunderbird Data Collection & Use>Allow Thunderbird to send backlogged crash reports ***/
user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false); // [FF58+]
/* 0370: disable UI instrumentation ***/
user_pref("mail.instrumentation.postUrl", "")
user_pref("mail.instrumentation.askUser", false)
user_pref("mail.instrumentation.userOptedIn", false)
/* 0390: disable Captive Portal detection
* [1] https://www.eff.org/deeplinks/2017/08/how-captive-portals-interfere-wireless-security-and-privacy
* [2] https://wiki.mozilla.org/Necko/CaptivePortal ***/
user_pref("captivedetect.canonicalURL", "");
user_pref("network.captive-portal-service.enabled", false); // [FF52+]
/* 0391: disable Network Connectivity checks [FF65+]
* [1] https://bugzilla.mozilla.org/1460537 ***/
user_pref("network.connectivity-service.enabled", false);
/*** [SECTION 0400]: BLOCKLISTS / SAFE BROWSING (SB) ***/
user_pref("_user.js.parrot", "0400 syntax error: the parrot's passed on!");
@ -333,6 +340,7 @@ user_pref("_user.js.parrot", "0700 syntax error: the parrot's given up the ghost
* [1] https://github.com/arkenfox/user.js/issues/437#issuecomment-403740626
* [2] https://www.internetsociety.org/tag/ipv6-security/ (see Myths 2,4,5,6) ***/
user_pref("network.dns.disableIPv6", true);
user_pref("network.notify.IPv6", false);
/* 0702: disable HTTP2
* HTTP2 raises concerns with "multiplexing" and "server push", does nothing to
* enhance privacy, and opens up a number of server-side fingerprinting opportunities.
@ -942,6 +950,10 @@ user_pref("permissions.default.xr", 2);
/*** [SECTION 2600]: MISCELLANEOUS ***/
user_pref("_user.js.parrot", "2600 syntax error: the parrot's run down the curtain!");
/* 2601: prevent accessibility services from accessing your browser [RESTART] [SETUP-FEATURE]
* [SETTING] Privacy & Security>Permissions>Prevent accessibility services from accessing your browser (FF80 or lower)
* [1] https://support.mozilla.org/kb/accessibility-services ***/
user_pref("accessibility.force_disabled", 1);
/* 2602: disable sending additional analytics to web servers
* [1] https://developer.mozilla.org/docs/Web/API/Navigator/sendBeacon ***/
user_pref("beacon.enabled", false);
@ -953,9 +965,10 @@ user_pref("devtools.chrome.enabled", false);
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16222 ***/
user_pref("devtools.debugger.remote-enabled", false); // [DEFAULT: false]
/* 2609: disable MathML (Mathematical Markup Language) [FF51+] [SETUP-HARDEN]
* [NOTE] Unlike arkenfox/user.js, we explicitly disable it
* [TEST] https://arkenfox.github.io/TZP/tzp.html#misc
* [1] https://bugzilla.mozilla.org/1173199 ***/
// user_pref("mathml.disabled", true);
user_pref("mathml.disabled", true);
/* 2610: disable in-content SVG (Scalable Vector Graphics) [FF53+]
* [NOTE] In FF70+ and ESR68.1.0+ this no longer affects extensions (1564208)
* [WARNING] Expect breakage incl. youtube player controls. Best left for a "hardened" profile.
@ -967,7 +980,7 @@ user_pref("middlemouse.contentLoadURL", false);
/* 2614: limit HTTP redirects (this does not control redirects with HTML meta tags or JS)
* [NOTE] A low setting of 5 or under will probably break some sites (e.g. gmail logins)
* To control HTML Meta tag and JS redirects, use an extension. Default is 20 ***/
user_pref("network.http.redirection-limit", 10);
user_pref("network.http.redirection-limit", 8);
/* 2619: enforce Punycode for Internationalized Domain Names to eliminate possible spoofing
* Firefox has *some* protections, but it is better to be safe than sorry
* [SETUP-WEB] Might be undesirable for non-latin alphabet users since legitimate IDN's are also punycoded
@ -1007,7 +1020,7 @@ user_pref("browser.download.hide_plugins_without_extensions", false);
* XPI files which are installed outside of profile and application directories
* [1] https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/
* [1] archived: https://archive.is/DYjAM ***/
user_pref("extensions.enabledScopes", 5); // [HIDDEN PREF]
user_pref("extensions.enabledScopes", 1); // [HIDDEN PREF]
user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
/* 2662: disable webextension restrictions on certain mozilla domains (you also need 4503) [FF60+]
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/
@ -1087,6 +1100,21 @@ user_pref("dom.storageManager.enabled", false);
Firefox interface as "Browsing & Download History" and their values will be synced
***/
user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
/* 2802: enable Thunderbird to clear items on shutdown (see 2803)
user_pref("privacy.sanitize.sanitizeOnShutdown", true);
/* 2803: set what items to clear on shutdown (if 2802 is true) [SETUP-CHROME]
* [NOTE] If 'history' is true, downloads will also be cleared regardless of the value
* but if 'history' is false, downloads can still be cleared independently
* However, this may not always be the case. The interface combines and syncs these
* prefs when set from there, and the sanitize code may change at any time ***/
user_pref("privacy.clearOnShutdown.cache", true);
user_pref("privacy.clearOnShutdown.cookies", true);
user_pref("privacy.clearOnShutdown.downloads", true); // see note above
user_pref("privacy.clearOnShutdown.formdata", true); // Form & Search History
user_pref("privacy.clearOnShutdown.history", true); // Browsing & Download History
user_pref("privacy.clearOnShutdown.offlineApps", true); // Offline Website Data
user_pref("privacy.clearOnShutdown.sessions", true); // Active Logins
user_pref("privacy.clearOnShutdown.siteSettings", false); // Site Preferences
/* 2804: reset default items to clear with Ctrl-Shift-Del (to match 2803) [SETUP-CHROME]
* This dialog can also be accessed from the menu History>Clear Recent History
* Firefox remembers your last choices. This will reset them when you start Firefox.
@ -1572,7 +1600,7 @@ user_pref("media.hardware-video-decoding.enabled", false);
user_pref("permissions.default.image", 2);
/*** [SECTION 6200]: OTHER THUNDERBIRD COMPONENTS (CHAT / CALENDAR / RSS)
Options that relate to other Thunderbird components such as the chat client, calendar and rss)
Options that relate to other Thunderbird components such as the chat client, calendar and RSS)
***/
user_pref("_user.js.parrot", "6200 syntax error: this parrot is not tweeting!");
@ -1587,33 +1615,38 @@ user_pref("purple.logging.log_ims", false);
user_pref("purple.logging.log_system", false);
/* 6205: Disable typing notifications ***/
user_pref("purple.conversations.im.send_typing", false);
/* 6210: When chat is enabled, do not connect to accounts automatically
/* 6206: When chat is enabled, do not connect to accounts automatically
* 0=Do not connect / show the account manager,
* 1=Connect automatically. (Default) ***/
// user_pref("messenger.startup.action", 0);
/** CALENDAR ***/
/* 6206: Disable calendar integration
* [SETUP-FEATURE] Lightning calendar add-on is integrated in Thunderbird 38 and later.
* Keeping this preference false allows us to properly show the opt-in/opt-out dialog
* on new profiles fresh start, see [3].
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=401779
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1130854
* [3] https://bugzilla.mozilla.org/show_bug.cgi?id=1130852 ***/
/* 6210: Disable calendar integration
* [SETUP-FEATURE] Lightning calendar add-on is integrated in Thunderbird 38 and later.
* Keeping this preference false allows us to properly show the opt-in/opt-out dialog
* on new profiles fresh start, see [3].
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=401779
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1130854
* [3] https://bugzilla.mozilla.org/show_bug.cgi?id=1130852 ***/
user_pref("mail.calendar-integration.opt-out", false);
/* 6207: Set user agent for calendar ***/
/* 6211: Set user agent for calendar ***/
user_pref("calendar.useragent.extra", "");
/* 6212: Set calendar timezone to avoid system detection [SETUP-INSTALL]
* By default, extensive system detection would be performed to find user's current timezone.
* Setting this preference to "UTC" should disable it.
* You may also directly set it to your timezone, i.e. "Pacific/Fakaofo" ***/
user_pref("calendar.timezone.local", "UTC"); // [DEFAULT: ""]
/** RSS ***/
/* These features used not to do anything as they weren't implemented.
* [1] https://dxr.mozilla.org/comm-release/source/mail/base/content/mailWindowOverlay.js#649
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=458606#c9 ***/
/* 6208: What classes can process incoming data.
/* 6220: What classes can process incoming data.
* (0=All classes (default), 1=Don't display HTML, 2=Don't display HTML and inline images,
* 3=Don't display HTML, inline images and some other uncommon types, 100=Use a hard coded list)
* [1] https://www.privacy-handbuch.de/handbuch_31j.htm ***/
user_pref("rss.display.disallow_mime_handlers", 3);
/* 6209: How to display HTML parts of a message body
/* 6221: How to display HTML parts of a message body
* (0=Display the HTML normally (default), 1=Convert it to text and then back again
* 2=Display the HTML source, 3=Sanitize the HTML, 4=Display all body parts)
* (in trunk builds later than 2011-07-23)
@ -1621,24 +1654,24 @@ user_pref("rss.display.disallow_mime_handlers", 3);
* [2] https://hg.mozilla.org/comm-central/rev/c1ef44a22eb2
* [3] https://www.bucksch.org/1/projects/mozilla/108153/ ***/
user_pref("rss.display.html_as", 1);
/* 6210: Prefer to view as plaintext or html
/* 6222: Prefer to view as plaintext or html
* true=Display a message as plain text when there is both a HTML and a plain
* text version of a message body
* false=Display a message as HTML when there is both a HTML and a plain text
* version of a message body. (default) ***/
user_pref("rss.display.prefer_plaintext", true);
/* 6211: Feed message display (summary or web page), on open.
/* 6223: Feed message display (summary or web page), on open.
* Action on double click or enter in threadpane for a feed message.
* 0=open content-base url in new window, 1=open summary in new window,
* 2=toggle load summary and content-base url in message pane,
* 3=load content-base url in browser
* [1] http://forums.mozillazine.org/viewtopic.php?f=39&t=2502335 ***/
user_pref("rss.show.content-base", 3);
/* 6212: Feed message display (summary or web page), on select.
/* 6224: Feed message display (summary or web page), on select.
* 0=global override, load web page, 1=global override, load summary,
* 2=use default feed folder setting from Subscribe dialog; if no setting default to 1 ***/
user_pref("rss.show.summary", 1);
/* 6213: Feed message additional web page display.
/* 6225: Feed message additional web page display.
* 0=no action, 1=load web page in default browser, on select ***/
user_pref("rss.message.loadWebPageOnSelect", 0);